Lexington, consolidated with Fayette County, is the second-largest city in Kentucky and the 61st largest in the United States. Known as the Horse Capital of the World, it is the heart of the state's Bluegrass region.
Effector. Definition. noun, plural: effectors. (biochemistry) A molecule that binds to a protein and affects the function of that protein. (physiology) An organ, a gland, or a muscle that can respond and becomes active in response to a stimulus (e.g. nerve impulse).upplement. In biochemistry, an effector is that molecule that binds to a specific protein, and regulates the latter's biological activity. An effector molecule acts as a ligand that is capable of increasing or decreasing the activity of that protein.
Effector molecules can also directly regulate the activity of some mRNA molecules (riboswitches). In some cases, proteins can be considered to function as effector molecules, especially in cellular signal transduction cascades. The term effector is used in other fields of biology.For instance, the effector end of a neuron is the terminus where an axon makes contact with the muscle or organ that it stimulates or suppresses.llosteric effectors can bind to regulatory proteins involved in RNA transcription in order to change its activity. In this way activator proteins become active to bind to the DNA to promote RNA Polymerase and repressor proteins become inactive and RNA polymerase can bind to the DNA.